Gill morphometry of the facultative air-breathing loricariid fish,Hypostomus plecostomus (Walbaum) with, special emphasis on aquatic respiration

@article{Perna1996GillMO,
  title={Gill morphometry of the facultative air-breathing loricariid fish,Hypostomus plecostomus (Walbaum) with, special emphasis on aquatic respiration},
  author={Sonia Aparecida Perna and Marisa Narciso Fernandes},
  journal={Fish Physiology and Biochemistry},
  year={1996},
  volume={15},
  pages={213-220}
}
Gill respiratory surface area and oxygen consumption during aquatic respiration were measured in the facultative air-breathing loricariid fish,Hypostomus plecostomus. The fish did not surface to breathe atmospheric air in normoxic water; air-breathing was evoked by environmental hypoxia (water oxygen tension=35±2, mmHg) and did not show size-related threshold differences for air breathing. During gradual hypoxia, without access to atmospheric, air,H. plecostomus was found to be an oxyregulator… CONTINUE READING

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